By demonstrating reflexes in headless frogs, was able to show that the spinal cord is all that is needed for reflexes to occur.

answer; i believe the correct answer is (replication is not conservative);

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

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